Automotive Forums .com - the leading automotive community online! Automotive Forums .com - the leading automotive community online!
Automotive Forums .com - the leading automotive community online! 
-
Latest | 0 Rplys
Go Back   Automotive Forums .com Car Chat > Ford > Taurus | Taurus Wagon
Register FAQ Community Arcade Calendar
Reply Show Printable Version Show Printable Version | Email this Page Email this Page | Subscription Subscribe to this Thread
 
Thread Tools
Old 01-11-2017, 10:12 AM   #16
Drooopy33
AF Newbie
Thread starter
 
Join Date: Dec 2016
Location: Baltimore, Maryland
Posts: 22
Thanks: 2
Thanked 0 Times in 0 Posts
Re: 2003 Ford Taurus losing acceleration when hot

Ok so I've taken a break from the Taurus as it was driving me nuts lol. So I'm back at it, though I am yet to change the MAF (my next step today) I noticed something I had not before. The car seems to be running fine in the park position, I can rev up to high RPM's and nothing unusual. Soon as the car is out into drive it starts to bog and can't give any gas without it wanting to stall. Once I put the car back into park it will catch itself and I can again rev it up. Any ideas?? Or do you think this could be the MAF doing this?? Ps, all O2 sensors have been changed and so far no lights on dash.
Drooopy33 is offline   Reply With Quote
Old 01-11-2017, 12:42 PM   #17
shorod
SHO No Mo
 
shorod's Avatar
 
Join Date: Jun 2004
Location: Cedar Rapids, Iowa
Posts: 10,977
Thanks: 103
Thanked 353 Times in 346 Posts
Re: 2003 Ford Taurus losing acceleration when hot

It sounds like the car only has issues when under a load. That could be a lot of things, and without the diagnostic equipment to see what's happening, you're kind of stuck shot-gunning parts and hoping you get lucky.

Normally I'd say it's probably spark plugs or plug wires, but you stated you previously replaced those. Of note though is you said after that it might have even gotten a little worse. Maybe one of the spark plug wires is not making a good connection?

A MAF that doesn't read correctly could cause an issue under load, but again without having datastream data for the MAF, it's just a guess. Fuel pressure could be another cause, but I think you previously said you changed the fuel pump and fuel filter as well, so that reduces the chances that's the issue.

Maybe you have an intake air tube with a crack in one of the accordion folds that opens when the engine shifts under load. Worth checking. Or maybe there is a brittle vacuum line or mis-routed vacuum hose that opens or gets pinched when the engine shifts.

-Rod
shorod is offline   Reply With Quote
Old 01-11-2017, 12:49 PM   #18
Drooopy33
AF Newbie
Thread starter
 
Join Date: Dec 2016
Location: Baltimore, Maryland
Posts: 22
Thanks: 2
Thanked 0 Times in 0 Posts
Re: 2003 Ford Taurus losing acceleration when hot

Ok I'll see what I can do and start checking things off hoping I get lucky. But yes definitely seems to be only when it's under load. Thank you again. I'll let you know what I come up with if anything. If you think of anything else I'd greatly appreciate the information. Thanks again!
Drooopy33 is offline   Reply With Quote
Old 07-17-2017, 01:10 PM   #19
Drooopy33
AF Newbie
Thread starter
 
Join Date: Dec 2016
Location: Baltimore, Maryland
Posts: 22
Thanks: 2
Thanked 0 Times in 0 Posts
Re: 2003 Ford Taurus losing acceleration when hot

Just for those who have read this post that may have had a similar problem. I never did find out the issue. I believe the transmission just was breaking down so I ended up selling the car.
Drooopy33 is offline   Reply With Quote
 
Reply

POST REPLY TO THIS THREAD

Go Back   Automotive Forums .com Car Chat > Ford > Taurus | Taurus Wagon


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 12:30 AM.

Community Participation Guidelines | How to use your User Control Panel

Powered by: vBulletin | Copyright Jelsoft Enterprises Ltd.
 
 
no new posts